We owe it to them not to scorn their work, even if we disagree with the cause they fought in.

It reached an absolute disaster from the French diplomatic point of view when French President Chirac attacked candidate EU states for disagreeing with French policy in what can only be called the most patronising terms.

Origin

When we agree to something, there is a core notion of trying to please; the word is from Old French agreer, based on Latin ad- ‘to’ and gratus ‘pleasing’. It took over a hundred years after the phrase ‘to agree’ first appeared in the writings of Chaucer for its opposite, disagree, to appear in writing during the 1490s.